Animals on the Underground

Here's something else I found when looking at interesting things to do with the London Underground map: Animals on the Underground.

Apparently if you stare at the tube map for long enough you'll start to see animals in the outline of the tube lines. I think this is like when you stare at stars or clouds for long enough you start to see other things too.

According to the site the animals currently hiding in the tube map include the following: bat, bald eagle, bird, bird in flight, bottlenose whale, cat, cockerel, dog, elephant, emu, fish, flamingo, hen, hound, lazy cat, penguin, pig, baby rhino, sperm whale, seal, stag, snail, turtle, whale, wombat and wallaby.